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Mudjacking is suitable for sidewalks, driveways, patios, and nearly all exterior flat structures. However, it may not suit severely damaged or heavily cracked areas.

Concrete overlay and concrete resurfacing are both concrete repair options. The terms are used interchangeably, and the meaning can vary from contractor to contractor. An overlay normally involves a thicker layer of new concrete over the old slab, which can last longer and add structural integrity to the old concrete. Resurfacing involves a thinner layer of concrete or resurfacing material and is for cosmetic upgrades only.

The repair method for a damaged concrete patio depends on the type of damage. For surface cracks, a concrete crack filler is a quick and simple fix. For larger cracks or uneven slabs, you may need to hire a professional to pump a cementitious material under the sunken portion to lift it back into place. For heavy spalling and other surface damage, resurfacing may be the best and most affordable option. This includes pouring a new layer of concrete over the old layer.

Yes, you can pour new concrete over old concrete, but you need to apply a concrete bonding agent to the existing concrete to ensure the new concrete sticks. Keep in mind that even with a bonding agent, large cracks and other flaws will still come through. If the concrete has heaved, settled, or cracked, pouring new concrete on top won’t address any root structural problems. Removing the existing concrete and rebuilding will be your best solution in that case.